2009 INFINITI QX56 200

WT-18
< COMPONENT DIAGNOSIS >
C1716 - C1719 TRANSMITTER PRESSURE MALFUNCTION
C1716 - C1719 TRANSMITTER PRESSURE MALFUNCTION
DescriptionINFOID:0000000003772380
Air pressure data from one or more transmitters is out of range.
DTC LogicINFOID:0000000003772381
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.ID REGISTRATION AND VEHICLE DRIVING
1. Carry out ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes.
3. Check all tire pressures with CONSULT-III within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> Inspection End.
NO >> Refer to WT-18, "
Transmitter Pressure Malfunction".
Transmitter Pressure MalfunctionINFOID:0000000003772382
MALFUNCTION CODE NO. 35, 36, 37 OR 38 (DTC C1716, C1717, C1718 OR C1719)
1.CHECK ALL TIRE PRESSURES
Check all tire pressures. Refer to WT-45, "
Tire".
Are there any tires with pressure of 64 psi or more?
YES >> Adjust tire pressure to specified value.
NO >> GO TO 2
2.ID REGISTRATION AND VEHICLE DRIVING
1. Carry out ID registration of all transmitters. Refer to WT-6, "
ID Registration Procedure".
2. Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
3. Check all tire pressures with CONSULT-III within 15 minutes after vehicle speed becomes 17 km/h (11
MPH).
Does
“DATA MONITOR ITEM” display 64 psi or more?
YES >> Replace transmitter. Refer to WT-43, "Transmitter (Pressure Sensor)". GO TO 3.
NO >> GO TO 3
3.ID REGISTRATION AND VEHICLE DRIVING
1. Carry out ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more fo r 3 minutes, and then drive the vehicle at any speed for
10 minutes.
3. Check all tire pressures with CONSULT-III within 5 minutes.
Does
“DATA MONITOR ITEM” display tire pressure as normal without any warning lamp?
YES >> Inspection End.
NO >> Proceed to the inspection applicable to DTC.
Special Repair RequirementINFOID:0000000003772383
Perform preliminary check. Refer to WT-5, "Preliminary Check".
DTCCONSULT - III DTC detecting condition
C1716 [PRESSDATA - ERR] FL Air pressure data from FL transmitter is malfunctioning.
C1717 [PRESSDATA - ERR] FR Air pressure data from FR transmitter is malfunctioning.
C1718 [PRESSDATA - ERR] RR Air pressure data from RR transmitter is malfunctioning.
C1719 [PRESSDATA - ERR] RL Air pressure data from RL transmitter is malfunctioning.
Revision: December 20092009 QX56

C1729 VEHICLE SPEED SIGNALWT-19
< COMPONENT DIAGNOSIS >
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C1729 VEHICLE SPEED SIGNAL
DescriptionINFOID:0000000003772384
The vehicle speed signal is not being detected by the BCM.
DTC LogicINFOID:0000000003772385
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
1. On “SELECT DIAG MODE”, select the “SELF-DIAG RESULT” screen.
2. Check display contents on "SELF DIAG RESULT" screen.
Is the
“CAN COMM CIRCUIT” displayed in the self-diagnosis display?
YES >> Refer to WT-19, "Vehicle Speed Signal".
NO >> Inspection end.
Vehicle Speed SignalINFOID:0000000003772386
MALFUNCTION CODE NO. 52 (DTC C1729)
1.CHECK SELF-DIAGNOSTIC RESULTS
1. On “SELECT DIAG MODE”, select the “SELF-DIAG RESULT” screen.
2. Check display contents on "SELF DIAG RESULT" screen.
Is the
“CAN COMM CIRCUIT” displayed in the self-diagnosis display?
YES >> Perform trouble diagnosis for CAN communication system. Refer to LAN-4.
NO >> Check combination meter. Refer to MWI-5
.
DTCCONSULT - III DTC detecting condition
C1729 VHCL SPEED SIG ERR Vehicle speed signal is in error.
Revision: December 20092009 QX56

WT-20
< COMPONENT DIAGNOSIS >
C1735 IGNITION SIGNAL
C1735 IGNITION SIGNAL
DescriptionINFOID:0000000004221465
The BCM monitors the IGN ON signal on the CAN line and compares it to it’s direct IGN ON signal. When
these two signals do not match, the BCM sets C1735.
DTC LogicINFOID:0000000004221466
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
1. On SELECT DIAG MODE, select the SELF-DIAG RESULT screen.
2. Check display contents on SELF DIAG RESULT screen.
Is C1735 displayed in the self-diagnosis display?
YES >> Refer to WT-20, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000004221467
MALFUNCTION CODE NO. 54 (DTC C1735)
1.CAN IGNITION SIGNAL
Check BCM IGN RLY signal with CONSULT-III. Refer to BCS-38, "
Reference Value".
Are the inspection results normal with the ignition switch ON?
YES >> GO TO 2.
NO >> Check CAN system. Refer to LAN-44, "
CAN System Specification Chart".
2.BCM POWER SUPPLY
Check BCM power supply (ignition ON). Refer to BCS-32, "
Diagnosis Procedure".
Is the power supply with the ignition switch ON normal?
YES >> GO TO 3.
NO >> Repair power supply as necessary.
3.DRIVE VEHICLE
Clear DTC and then test drive the vehicle and check the low tire pressure warning lamp.
Does the vehicle operate without any low tire pressure warning lamp?
YES >> Inspection End.
NO >> Replace BCM. Refer to BCS-56, "
Removal and Installation".
DTCCONSULT - III DTC detecting condition
C1735 IGNITION SIGNAL LINE - BCM/TPMS BCM has detected a mismatch between IGN ON signals.
Revision: December 20092009 QX56

BCM (BODY CONTROL MODULE)WT-21
< ECU DIAGNOSIS >
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ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference ValueINFOID:0000000004223689
VALUES ON THE DIAGNOSIS TOOL
Monitor Item Condition Value/Status
AIR COND SW A/C switch OFF
OFF
A/C switch ON ON
AUT LIGHT SYS Outside of the room is dark
OFF
Outside of the room is bright ON
AUTO LIGHT SW Lighting switch OFF
OFF
Lighting switch AUTO ON
BACK DOOR SW Back door closed
OFF
Back door opened ON
CDL LOCK SW Door lock/unlock switch does not operate
OFF
Press door lock/unlock switch to the LOCK side ON
CDL UNLOCK SW Door lock/unlock switch does not operate
OFF
Press door lock/unlock switch to the UNLOCK side ON
DOOR SW-AS Front door RH closed
OFF
Front door RH opened ON
DOOR SW-DR Front door LH closed
OFF
Front door LH opened ON
DOOR SW-RL Rear door LH closed
OFF
Rear door LH opened ON
DOOR SW-RR Rear door RH closed
OFF
Rear door RH opened ON
ENGINE RUN Engine stopped
OFF
Engine running ON
FR FOG SW Front fog lamp switch OFF
OFF
Front fog lamp switch ON ON
FR WASHER SW Front washer switch OFF
OFF
Front washer switch ON ON
FR WIPER LOW Front wiper switch OFF
OFF
Front wiper switch LO ON
FR WIPER HI Front wiper switch OFF
OFF
Front wiper switch HI ON
FR WIPER INT Front wiper switch OFF
OFF
Front wiper switch INT ON
FR WIPER STOP Any position other than front wiper stop position
OFF
Front wiper stop position ON
HAZARD SW When hazard switch is not pressed
OFF
When hazard switch is pressed ON
LIGHT SW 1ST Lighting switch OFF
OFF
Lighting switch 1st ON
Revision: December 20092009 QX56

WT-22
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
HEADLAMP SW1Headlamp switch OFF OFF
Headlamp switch 1st
ON
HEADLAMP SW2 Headlamp switch OFF
OFF
Headlamp switch 1st ON
HI BEAM SW High beam switch OFF
OFF
High beam switch HI ON
H/L WASH SW NOTE:
The item is indicated, but not monitored OFF
IGN ON SW Ignition switch OFF or ACC
OFF
Ignition switch ON ON
IGN SW CAN Ignition switch OFF or ACC
OFF
Ignition switch ON ON
INT VOLUME Wiper intermittent dial is in a dial position 1 - 7 1 - 7
I-KEY LOCK LOCK button of Intelligent Key is not pressed
OFF
LOCK button of Intelligent Key is pressed ON
I-KEY UNLOCK UNLOCK button of Intelligent Key is not pressed
OFF
UNLOCK button of Intelligent Key is pressed ON
KEY ON SW Mechanical key is removed from key cylinder
OFF
Mechanical key is inserted to key cylinder ON
OIL PRESS SW • Ignition switch OFF or ACC
• Engine running
OFF
Ignition switch ON ON
PASSING SW Other than lighting switch PASS
OFF
Lighting switch PASS ON
REAR DEF SW Rear window defogger switch OFF
OFF
Rear window defogger switch ON ON
RKE LOCK AND UN-
LOCK NOTE:
The item is indicated, but not monitored OFF
ON
RR WASHER SW Rear washer switch OFF
OFF
Rear washer switch ON ON
RR WIPER INT Rear wiper switch OFF
OFF
Rear wiper switch INT ON
RR WIPER ON Rear wiper switch OFF
OFF
Rear wiper switch ON ON
RR WIPER STOP Rear wiper stop position
OFF
Other than rear wiper stop position ON
TAIL LAMP SW Lighting switch OFF
OFF
Lighting switch 1ST ON
TRNK OPNR SW When back door opener switch is not pressed
OFF
When back door opener switch is pressed ON
TURN SIGNAL L Turn signal switch OFF
OFF
Turn signal switch LH ON
TURN SIGNAL R Turn signal switch OFF
OFF
Turn signal switch RH ON
VEHICLE SPEED While driving Equivalent to speedometer reading
Monitor Item
Condition Value/Status
Revision: December 20092009 QX56

BCM (BODY CONTROL MODULE)WT-23
< ECU DIAGNOSIS >
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Wiring DiagramINFOID:0000000003772388
ABEWA0003GB
Revision: December 20092009 QX56

WT-24
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
ABEIA0005GB
Revision: December 20092009 QX56

BCM (BODY CONTROL MODULE)WT-25
< ECU DIAGNOSIS >
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ABEIA0006GB
Revision: December 20092009 QX56